35 citations · 81 across the 3 of their papers we have counts for
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Pre-main-sequence stars in the young open cluster NGC 1893: II. Evidence for triggered massive star formation
Ignacio Negueruela, Amparo Marco, GianLuca Israel +1
(Abridged) The open cluster NGC 1893, illuminating the HII region IC410, contains a moderately large population of O-type stars and is one of the youngest clusters observable in th…
The Be/X-ray transient KS 1947+300
Ignacio Negueruela, GianLuca Israel, Amparo Marco +2
We present optical spectroscopy and optical and infrared photometry of the counterpart to the transient X-ray source KS 1947+300. The counterpart is shown to be a moderately redden…
The discovery and study of the optical counterparts of the transient X-ray pulsars RXJ0052.1-7319 and XTEJ0111.2-7317 in the SMC
Stefano Covino, Ignacio Negueruela, Sergio Campana +4
We report on the discovery and confirmation of the optical counterparts of the two transient X-ray pulsars, RXJ0052.1-7319 and XTEJ0111.2-7317. In the narrow (~3" radius) X-ray err…